noticed a new clue with the "my timeline hangs at the loading spinner forever on multiple instances" bug in 3.35.1
if I search a hashtag on an instance where that is currently happening and then tap a hashtag to display results, it will also hang at the loading spinner forever
edit: it looks like it doesn't hang forever, it's just that the loads are really really slow (several minutes) when the instances work normally via the web browser.